Nbw Yokk, Muy 3. The following was received at Iho Navy Department to-day : FlAG Suip Wahasii. Pt.Eoyal, S.C., ) April 28, 1802. 5 I have just time tliis moruing before the departuro of the Susquehanna to nform the Department of the an iva hcro of the robel stcamer Isabel (El!; W'urluy) in ehargo of Lieutenant Wil son, and a prize crew, she having beei eaptured by the St. Jago de Cubn Commander Kidgely, 100 miles ncrth of Abacoo. She is deeply loaded witl Enfield rifles, and lui?, it is eupposed riiled eannon n her forehold, wliich han not been examibed. These arma were taken on board, of couree, at one of the neutral colonies oft'our coast. I am informed by Lieutenant Gibson that the St Jago de Cuba discovered and chased the Nashville, hut the lat.tër wal muc'h too swilt for Ier. The Nashville also had arms on board for the rebels, intending to run the bloekade, il possible. Very respectfullv, vour obedient sorvant. S. F: DUPONÏ, I'lag Oflicer commaiiding, &c. To Gideox Welles, Secretary of' the Navy.